Revenue Recognition - Summary of Revenues Disaggregated by End Market and Product (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Net revenues	$ 301,728	$ 255,669
Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	100.00%	100.00%
Insulation [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 202,275	$ 175,623
Insulation [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	67.00%	69.00%
Waterproofing [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 22,606	$ 21,005
Waterproofing [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	7.00%	8.00%
Shower Doors, Shelving and Mirrors [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 20,260	$ 12,885
Shower Doors, Shelving and Mirrors [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	7.00%	5.00%
Garage Doors [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 15,466	$ 14,287
Garage Doors [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	5.00%	6.00%
Rain Gutters [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 8,658	$ 8,442
Rain Gutters [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	3.00%	3.00%
Other Building Products [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 32,463	$ 23,427
Other Building Products [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	11.00%	9.00%
Residential and Multi-family [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 250,114	$ 209,391
Residential and Multi-family [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	83.00%	82.00%
Commercial [Member]
Disaggregation of Revenue [Line Items]
Net revenues	$ 51,614	$ 46,278
Commercial [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Percentage of Net revenues	17.00%	18.00%